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Finding the Third Proportional to 117,986.25 and 256,706.25

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Solution

The third proportional to 117,986.25 and 256,706.25 is: 558,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,986.25 : 256,706.25 = 256,706.25 : x
  2. Step 2: Convert to fraction form
    117,986.25/256,706.25 = 256,706.25/x
  3. Step 3: Cross multiply
    117,986.25x = 256,706.25 × 256,706.25
  4. Step 4: Simplify right side
    117,986.25x = 65,898,098,789.06
  5. Step 5: Solve for x
    x = 65,898,098,789.06/117,986.25
  6. Step 6: Final answer
    x = 558,523.55

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.